Philip hinkle



P. HINKLB, MACHINE FOB GRINDING AND AMALGAMATINGIORBS.

No. 63,979. Patented Apr. 16,1867.

"niteh gram gaunt gift-tr PHILIP HINKLE, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR TD HIMSELF AND CHARLES S. CAPP, OF THE SAME PLACE,

Letters Patent No. 63,979, dated April 16, 1887.

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To ALL WHOM 11' MAX conounu;

' Be it known that I, PHILIP HINKLE, of the city and county of San Francisco, in the State of California, have invented a new and improved Arrangement of Machinery for Grinding and Amalgamatiug Ores of Gold and Silver and other Minerals; and I do declare that the following is a full and exact description thereof, referenee being had to the accompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

In this ore-grinder and amalgamator, the main improvements made consist in having the principal part of the grinding effected by means of perpendicular mullers or, grinding plates thrown laterally, by centrifugal force, against a l mlar, perpendicular grinding surface, formed by the side dies arranged against the walls of the basin or pan, and all! .peculiar shape and arrangement of the cover by which a continual flow of the ground pulp from the circumference to the centre is secured, until the amalgamation is completed.

The power is appued in any effective manner to the central driving-shaft A, which carries the hollow cone A, having four or more horizontal arms 13 B, to the under surfaces of which are attached the ordinary flat mullet-s or grinding plates B 13, moving over the segmental dies or bed plates H H, fitting'within the-bottom of the pan or tub. On each of the arms 13 B is a. perpendicular round pin, C C, by which are carried and allowed to play loosely the perpendicular mullcr-hangers E E, which 'are also supported by the lips .I I resting upon the smooth bearing surfaces D on the arm B which follows it To the muller-hanger E is securely attached the perpendicular mullci' or grinder F, (which pan be renewed when worn out.) By means of the slot J, or otherwise, provision is made for loading the mull el hauger E to counterbalance the loss of weight by wear of the surface of the muller or grinder F. The pressure of the flat mullers 1313 upon the under dies or grinding plates '-H-isregulatedby the screw 0 and'set-sorew P hearing-on the head of theshaft Aaud-rhising or depressingthc cone A with its arms B B. When the arms B B are revolved the perpendicular mullers or grinders FF are thrown by centrifugal force against the perpendicular grinding surface formed by the dies G G, and between them the crushed ore, as it comes from under the horizontal mullers, is pulverized and amalgamated. The grooves Maud N contain mercury, protected from the. mullers and motion of the ore, and the amalgam there formed is drawn off through apertures K and I4. In pulveriziug and amalgamating a single charge of silver or other ores, the pulp is introduced at the centre around the shaft A and cone A into the feeder T, and thence passing between the horizontal grihding surfaces, and afterwards between the perpendicular muilers F and the dies G, is carried by centrifugal force against the sides, and rising passes through apertures R R in the coper of the pan U, under the projecting flange V, and thence flows over ithe funnel-shaped portion of its upper surface, the ring W, which breaks the force of the current, and the groove S, containing mercury, and returning to the centre rccnters the feeder T, when the process is contiuued'nntil the amalgamation is completed; I For grinding and amalgamating continuously, as the'pulp is supplied from the batteries of a crushing-mill, the feeder T is extended upwards as a funnel above the top of the cover of the pan, which is then made a simple convex lid, and the pulp as ground escapes from an annular aperture in the cover around the feeder. The raised edge of this aperture forms the head of a spent by which the pulp is carried cfl as fast as discharged. The. metals liberated by the grinding are caught and amalgamated in the grooves M and N.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. Tue employment of the renewable side dies G G to form a perpendicular grinding surface on the Sides of the tut or pan, substantially in the manner and for the purpose described.

2. The employment of the perpendicular muller-hangers E E, loosely hung oh the pins C C, carrying the renewable mullers or grindingiplates FF, of the shape shown in the drawings, thrown and pressed laterally by centrifugal force against the perpendicular grinding surface G G, when them-ms B B are revolved, with the supporting lip I and bearing surface 1), up'on the arms B B, by which prrangemcnt the pressure is lightest at the feedingpoint and heaviest at'the heel of the muller; and alsothe provision for loading the mulier-hanger to counterhalancethe loss of weight by weal-of the face-of the mullcr F, substantially in thefmanner audfor the purpose described.

3. The shape and arrangement of the cover of .thc'pa-u U, so as to form a flattened funnel-shaped dish with annular grooves S for mercury, and raised current-breakingriugW on its upper sur-t'irce, the collar or projecting flange V, with the apertures R R under it, by which the escape of the pulp is permitted and its current directed so that it is returned to the centre and a continual circulation maintained.

' PHILI-R-HINKLE.

Witnesses:

CHARLES S. Curr, Ons V. Sawyer. 

